#region License

/* Copyright (c) 2008, Dusty Candland
 * 
 * All rights reserved.
 * 
 * Redistribution and use in source and binary forms, with or without modification, are permitted provided that the following conditions are met:
 * * Redistributions of source code must retain the above copyright notice, this list of conditions and the following disclaimer.
 * * Redistributions in binary form must reproduce the above copyright notice, this list of conditions and the following disclaimer in the documentation and/or other materials provided with the distribution.
 * * Neither the name of Dusty Candland nor the names of its contributors may be used to endorse or promote products derived from this software without specific prior written permission.
 * 
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR
 * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
 * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
 * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
 * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
 * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
 * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 */

#endregion

using System;

namespace NS3Library
{
    public class S3Acl
    {
        private readonly string _acltext;

        public static readonly S3Acl Private = new S3Acl("private");
        public static readonly S3Acl PublicRead = new S3Acl("public-read");
        public static readonly S3Acl PublicReadWrite = new S3Acl("public-read-write");
        public static readonly S3Acl AuthenticatedRead = new S3Acl("authenticated-read");

        public const string AmazonAclHeaderName = "x-amz-acl";

        private S3Acl(string acltext)
        {
            _acltext = acltext;
        }

        public override string ToString()
        {
            return _acltext;
        }

        public static S3Acl Create(string acltext)
        {
            if (acltext.Equals(PublicRead.ToString(), StringComparison.InvariantCultureIgnoreCase))
                return PublicRead;
            else if (acltext.Equals(PublicReadWrite.ToString(), StringComparison.InvariantCultureIgnoreCase))
                return PublicReadWrite;
            else if (acltext.Equals(AuthenticatedRead.ToString(), StringComparison.InvariantCultureIgnoreCase))
                return AuthenticatedRead;
            else
                return Private;
        }
    }
}